Wall.



F. M. EMERSON.

WALL.

APPLICATION FILED NOV. 30, 1909.

. 'cfQ/m S Patented Aug. 6, 1912. I

UNITED STATES PATENT OFFICE.

FREDERIC MORTIMER EMERSON, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO EMERSON dc NORRIS 00., OF BOSTON, MASSACHUSETTS, A CORPORATION OF MASSAGEUSETTS.

WALL.

Specification of Letters Patent.

Patented Aug. 6, 1912.

Application filed November 30, 1909. Serial No. 530,599.

To a! whom it may concern.

Be it known that I, FREDERIC MORTIMER EMERSON, a citizen of the United States, residing at Boston, in the county of Sufi'olk and State of Massachusetts, have invented a new and useful Wall, of which the following is a specification.

This invention relates to a concrete wall and block therefor.

It is well understood in this art that an ideal wall for a building should be fireproof, damp-proof, and non-conductive of heatand cold, and that it should be pleasing in appearance, consisting of true monoliths and of a substance hard, dense, and nonabsorbent.

Important objects of this invention are to provide a construction having all of these advantages, and at the same time capable of beingconstructed without the use of wood or'ironforms and at a reduction of cost in layingup; and to provide improved means whereby the whole mass canbe bound together in the wall so as to secure the block anchors and the vertical steel reinforcing rods.

- Further objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings, in which-Figure 1 is a per-- spective view showing portions of two courses of a wall in accordance with this invention in the course of construction. Fig. 2 is aperspective view of a block of one of the courses; Fig. 3 is a perspective view of a block of the other course, and Fig. his a plan on reduced scale showing a slight modificat-ion. Y

The invention is shown as embodied in a form of wall having two forms of blocks, both embodying the features of the invention, arranged in alternate courses. The blocks in these two courses are designated 10 and 11 respectively. One of the blocks 10 will first be described. This block is shown as comprising a main body of a general rectangular shape in cross section and as having a tongue 12 projecting from the inner face thereof at a short distance from one end. The other end of the block is shown in Fig. 3 as plain. Near the center there is an inward projection-B the purpose of which will be described later. Extending longitudinally through the block are shown horizontal metallic reinforcing members 14 projecting at one end through the outer side surface of the tongue 12 and projecting from the inner face of the block at a very short distance from the other end. These projecting ends constitute-block anchors as will appear hereinafter.

Each of the blocks 11 has substantially the same characteristics but in order that the blocks may be laid to break joints the tongues 15 which correspond to the tongues 12 are located just at one side of. the center.

The blocks also have anchors 140 andinwardly extending projections 16 at their opposite ends. each having a vertical groove 17 in the end thereof which rest upon the projections 13 when the blocks are laid to break joints as indicated in Fig. 1. In both cases it will be seen that the tongues are located between. and spaced from,-the center and end of the block.

In laying the wall a course of blocks 10 is laid up in the manner indicated in Fig. 1 with the tongues on the front course located at the same end of the blocks and the tongues on the rear course located at the opposite end. Each tongue of course extends into contact with the opposite block. Then a course of blocks 11 is placed on top of the first course breaking joints and with their tongues registering. Consequently, these tongues divide the space betweenthe outer and inner courses of the wall into two sets of alternate spaces 18 and 19. These spaces register with each-other 1n the severa]- courses. and form vertical air spaces and vertical spaces for holding a binding material respectively. The vertical airspaces 18 are free from metallic projections of all kinds, but the anchors 14c and 140 project from opposite ends into the spaces 19 and can be connect-ed with each other within these spaces if desired. Through these spaces also pass the vertical steel reinforcing rods 20. When several courses have been built up alternately as indicated in Fig. 1, the vertical spaces which hold the anchors and reinforcing rods are poured full of a liquid concrete grout which hardens and binds the whole mass together, clenching the bolt anchors and the steel reinforcing rods. In this way the tongues perform the oflice of forms and the necessity of removable forms for holding the binding grout is avoided, thus economizing both in the materials used-and time required in the construction of the wall. 1 p i The blocks preferably are cast from wet- 5 concrete in sand molds face up, which insures a dense, hard, and non-absorbent block to which ments can be applied on the face. Plaster can be applied directly upon the'inside face. if desired. The blocks are adapted for any thicknessof wall, as the thickness is dependent upon the length of the tongues." If an extra thickness of wall is' desired, thetongues can 'be castso. as-to project from 15 both inside facesot the opposite blocks to meet either in the center or sired. This is shown in Fig 4, in wh igh a great variety of surface treat-.

other side,

elsewhere as de-- courses of duplicate'b locks, each block having a single in'wardlyextending tongue near, but spaced from, one end, each c'ourse being made'up of outer and inner blocks, the outer blocks all being arranged with their tongues near one end, and'the inner. blocks all being arranged with'their tonguesnear the oppo the ends of each inner block bemg directly opposite those of the opposite outer site end,

block, each of said tongues extending clear across the space between the blocks and engaging therfiatsurface tthe block on the left between the tongues alternating with smaller vertical spaces at the ends of the blocks, andremaining courses located be whereby vertical air spaces are tweiTiWfif sat-a" alternate courses ton esfQ g and 2:13 are'shownfofiftifthem made' up of. blocks having COII'GSPOndlIlg ""bemg'a long oneand the other a short one. -'t0ngues just at one side of the center, each While Ihaveillustrated and described a preferred embodiment of the inventioIiI am aware that many rgodifications can be made therein by any p rson skilled in' the art 20 tongue projecting acrossthe space between the blocks and forming alternate spacesas in the alternate courses.

In testimony whereof I have hereunto set without departing frorn't-lie-scopeFof-thei v.myI -hand, he presenceot two subscribing a 1 5 vention as expressed in'the claim. There witn si'f details ofconstruction herein shown and. de

so In a 

